37 Installation of banners and signs in the nature of building signs, electrical signs, non-electrical signs, advertising graphics, advertising banners, dimensional signage, building lettering, advertising displays, parking signage, wayfinding signage, murals, streetscape signage, monument signage, pole signage and pylon signage; Maintenance of visual communications being banners and signs, namely, building signs, electrical signs, non-electrical signs, advertising graphics, advertising banners, dimensional signage, building lettering, advertising displays, parking signage, wayfinding signage, murals, streetscape signage, monument signage, pole signage and pylon signage